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Tasty tidbits on your celebrity faves!

Raven-Symoné gets more than she bargained for when an expedition to visit colleges turns into a comedy of errors, thanks to her dad (Martin Lawrence) in the new movie College Road Trip. "She's very strong-willed and knows what she wants to do," Raven described her character, Melanie, at the movie's Hollywood premiere. "She has to help her parents grow along with her, and every kid or young adult has to do that."

Raven has taken five real cross-country road trips with her parents, brother, and dog. "A lot of crazy experiences, but no skydiving," she said, though she didn't really skydive for a scene in the movie. She's heard on the soundtrack, and her fourth CD, Raven-Symoné, will be out in April. "It's a party album. I'm going on tour from April till August," she revealed.

Brenda Song, who plays one of Raven's friends, is her real-life neighbor and loved getting to work with her even though they were stuck in a hot and stuffy car for hours on end. Brenda, a veteran of real car trips with her parents and brothers, will next be on a ship when she and the Sprouse brothers start working on Suite Life on Deck. "We'll be stopping in different ports, so we'll have different cultures, different cast members, a new environment," she said excitedly, hoping that they'll get to shoot on location. She recently returned from Hawaii, where she filmed a Lifetime TV movie called Special Delivery about a girl being sent to live with the mother she never met.

Margo Harshman, who plays another friend, celebrated her March 4 birthday a day early at the premiere with friends and family. She's got a couple of other movies coming up, one with Haylie Duff, and she starts shooting the comedy Fired Up next week. Molly Ephraim, who plays Donny Osmond's daughter, is a Broadway musical veteran making her movie debut in College Road Trip. She took a road trip with her mom to visit colleges and chose Princeton, where she studies.

Other stars on the red carpet included Kyle Massey, Abigail Breslin, and Camp Rock's Ana Maria Perez de Tagle, who won't forget one car trip with her parents and four-year-old cousin. "He wasn't potty-trained," she said. You can guess the rest. "I had to change clothes."

SELENA GOMEZ: HORTON HEARS A WHO!

Listen carefully and you might recognize the voice of Selena Gomez (Wizards of Waverly Place) as several of the mayor of Whoville's 96 daughters in the new animated movie Horton Hears a Who! "I got to change up my voice. Some of them were whiny, and some of them were shy or stubborn," says Selena, who grew up on Dr. Seuss's Green Eggs and Ham and How the Grinch Stole Christmas. Jim Carrey, the Grinch himself, is the voice of Horton the elephant. "I'm such a fan of Dr. Seuss," he says. "I feel so honored that both of these movies have come my way." Check it out March 14.

EARTH-SAVING ADVICE

Earth Day is coming April 22, and Disney Channel stars Emily Osment, Mitchel Musso, Selena Gomez, Maiara Walsh, Jason Dolley, David Henrie, and Alyson Stoner prepared by planting trees with the Tree People organization in L.A. and shared their "green living" tips. Emily uses energy-saving light bulbs, David turns off electrical items at home when they're not in use, Jason takes shorter showers, Maiara recycles, and Alyson uses both sides of note paper or e-mails to save even more paper. Selena, who grows her own veggies and uses the cuttings for compost, recommends packing your lunch with reusable bags and utensils. And Mitchel shops for vintage clothing. "I love the look, and it also helps save the Earth," he says.

WHAT TO WATCH

The cast of Degrassi heads to Africa to help a community build a school in Degrassi: Doing What Matters, March 14 at 8 p.m. on The N. The new Nickelodeon series H20, about three Australian teen girls who become mermaids when they find a magical underwater cavern, kicks off with a two-hour movie March 14 at 8 p.m. The series premieres March 16 at 7:30 p.m.

While you're waiting for Emma Roberts's movie Wild Child to come out next month, check her out on DVD in Nancy Drew March 20. The animated Bee Movie is also new to DVD on March 11.

Dancing with the Stars kicks off its sixth season March 17 at 8 p.m., and Beauty and the Geek returns to the CW March 11 at 8 p.m. The Academy Award-winning animated short film Peter and the Wolf airs on PBS stations this month (check your local listings).